Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-07, as of 2026-07-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | KDK · NASDAQ | 200,618,170 | 84,601,071 | 42.2% | 75 | 500081104 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (28 of 28 · 500081112)
change vs 2026-03-31Exited since 2026-03-31 (5 filers; largest 5 shown)
| BARCLAYS PLC | −200,000 |
| Ionic Capital Management LLC | −111,015 |
| Boussard & Gavaudan Investment Management LLP | −100,000 |
| K2 PRINCIPAL FUND, L.P. | −41,764 |
| UBS Group AG | −3,858 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Stefan Renold | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| LMR PARTNERS Ltd | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| LMR Partners (Ireland) Limited | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| LMR PARTNERS (DIFC) Ltd | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| LMR Partners AG | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| Ben Levine | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| SOROS FUND MANAGEMENT LLC | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 9,767,037 | 4.9% |
| George Soros | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 9,767,037 | 4.9% |
| LMR Partners LLC | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| LMR Partners LLP | SCHEDULE 13G | 2026-08-14 | 2026-06-30 | 13,441,521 | 6.5% |
| W. R. Berkley Corporation | SCHEDULE 13G/A | 2026-08-05 | 2026-06-30 | 0 | 0% |
| Berkley Insurance Company | SCHEDULE 13G/A | 2026-08-05 | 2026-06-30 | 0 | 0% |
| Jeffrey Smith | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 2,990,929 | 1.6% |
| SIP Global Tech Opportunity LLC | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 1,454,910 | 0.8% |
| Justin Turkat | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 12,543,199 | 6.9% |
| SIP Global Tech Opportunity 4 LLC | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 6,979,874 | 3.8% |
| Matthew Salloway | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 9,552,270 | 5.2% |
| SIP Global Tech Opportunity 3 LLC | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 1,117,486 | 0.6% |
| SIP Global Tech Fund I, L.P. | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 2,990,929 | 1.6% |
| SIP Global Tech Fund I, Inc. | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 2,990,929 | 1.6% |
| SIP Global Opportunity Manager LLC. | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 9,552,270 | 5.2% |
| Shigeki Saitoh | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 2,990,929 | 1.6% |
| Polar Asset Management Partners Inc. | SCHEDULE 13G/A | 2026-05-15 | 2026-03-31 | 2,358,587 | 1.3% |
| Fort Baker Capital Management LP | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| Fort Baker Capital, LLC | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| Steven Patrick Pigott | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| The Merger Fund | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| Virtus Investment Advisers, LLC | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| Westchester Capital Management, LLC | SCHEDULE 13G/A | 2025-11-14 | 2025-09-30 | 0 | 0% |
| Anand Parekh | SCHEDULE 13G | 2025-11-14 | 2025-09-30 | 18,102,618 | 9.9% |
| Alyeska Investment Group, L.P. | SCHEDULE 13G | 2025-11-14 | 2025-09-30 | 18,102,618 | 9.9% |
| Alyeska Fund GP, LLC | SCHEDULE 13G | 2025-11-14 | 2025-09-30 | 18,102,618 | 9.9% |
| AAC II Holdings II LP | SCHEDULE 13G/A | 2025-11-12 | 2025-09-30 | 3,591,627 | 1.8% |
| Ares Acquisition Holdings II LP | SCHEDULE 13G/A | 2025-11-12 | 2025-09-30 | 26,800,000 | 13.7% |
| Catherine D. Wood | SCHEDULE 13G/A | 2025-11-07 | 2025-10-31 | 2,255,006 | 1.24% |
| ARK Investment Management LLC | SCHEDULE 13G/A | 2025-11-07 | 2025-10-31 | 2,255,006 | 1.24% |
| Battery Investment Partners XII, LLC | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 215,770 | 0.1% |
| Battery Partners XII, LLC | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Jesse Feldman | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Michael M. Brown | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Battery Ventures XII, L.P. | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,140,899 | 6.1% |
| Morad Elhafed | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Neeraj Agrawal | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Paz Eshel Living Trust | SCHEDULE 13G | 2025-10-01 | 2025-09-24 | 17,075,095 | 9.4% |
| Burnette Donald L. | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 27,300,969 | 15.1% |
| Roger H. Lee | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Russell L. Fleischer | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Eshel Paz Michael | SCHEDULE 13G | 2025-10-01 | 2025-09-24 | 17,075,095 | 9.4% |
| Chelsea R. Stoner | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Dharmesh Thakker | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Scott R. Tobin | SCHEDULE 13D | 2025-10-01 | 2025-09-24 | 11,356,669 | 6.3% |
| Meteora Capital, LLC | SCHEDULE 13G | 2025-08-14 | 2025-06-30 | 4,845,228 | 7.83% |
| AQR Capital Management, LLC | SCHEDULE 13G/A | 2025-08-13 | 2025-06-30 | 1,875,229 | 3.03% |
| AQR Capital Management Holdings, LLC | SCHEDULE 13G/A | 2025-08-13 | 2025-06-30 | 1,875,229 | 3.03% |
| AQR Arbitrage, LLC | SCHEDULE 13G/A | 2025-08-13 | 2025-06-30 | 1,875,229 | 3.03% |
| Wealthspring Capital LLC | SCHEDULE 13G/A | 2025-06-04 | 2025-05-31 | 0 | 0% |
| Matthew Simpson | SCHEDULE 13G/A | 2025-06-04 | 2025-05-31 | 0 | 0% |
| First Trust Merger Arbitrage Fund | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,830,891 | 3.66% |
| First Trust Capital Solutions L.P. | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,982,210 | 3.96% |
| FTCS Sub GP LLC | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,982,210 | 3.96% |
| First Trust Capital Management L.P. | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 1,982,210 | 3.96% |
| Mizuho Financial Group, Inc. | SCHEDULE 13G | 2025-05-13 | 2025-03-31 | 3,133,249 | 6.3% |
| Barclays PLC | SCHEDULE 13G/A | 2025-03-21 | 2024-09-30 | 3,538,577 | 7.07% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.